It was in this article he stated it was £52 million last season but expecting it to rise to £70 mill this season.
http://www.theguardian.com/football/2015/sep/11/eagles-steve-parish-crystal-palace-interview?CMP=share_btn_tw
Parish is now claiming that this years wage bill will rise to £70 million, so at that rate, they will still be playing in the run down Selhurst for many years to come.